Mutants and hybrids of the oenotheras . 5 to 6 mm. wide atthe mouth, nearly terete, sparinglypubescent or glabrate ; sepals 15 to20 mm. long, much shorter than thetubular portion of the hypanthium,petals rather delicate, 12 to 16 or slightly emarginate at the apex; filaments 8 to 10long; anthers 7 to 8 mm. long ; pistil shorter than the stamens ;stigmas 4 to 5 mm. long; capsule 3 to cm. long, 7 to mm. indiameter at the thickest point, finely pubescent, slightly curved,markedly narrowed at the apex. (PI. VI.) It is to be seen from the above description that O. biennis iscapa
Mutants and hybrids of the oenotheras . 5 to 6 mm. wide atthe mouth, nearly terete, sparinglypubescent or glabrate ; sepals 15 to20 mm. long, much shorter than thetubular portion of the hypanthium,petals rather delicate, 12 to 16 or slightly emarginate at the apex; filaments 8 to 10long; anthers 7 to 8 mm. long ; pistil shorter than the stamens ;stigmas 4 to 5 mm. long; capsule 3 to cm. long, 7 to mm. indiameter at the thickest point, finely pubescent, slightly curved,markedly narrowed at the apex. (PI. VI.) It is to be seen from the above description that O. biennis iscapable of self-fertilization by reason of the superior length of thestamens, a fact that was demonstrated in the experimental secure purely fertilized seeds it was only necessary to inclose theinflorescence in a parchment bag during the opening of the flowers. *Plants growing in thickets are more spindling and have the lower branchessuppressed, while the young rosettes are luxuriant, with broader leaves undersuch *ig. -Onagra biennis seedling threemonths after germination. the free tips 4 to 5 mm. long long,mm. PLATE IV.
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